How to import class from another module in android studio?

Question

I created two modules in single android project, named it x and y.

Module x has a class Egg (Package: com.example.x)
Module y has a class Foo (Package: com.example.y)

Now I want to import class Foo in the class Egg, for which I wrote the statement mentioned below in class Egg

Import com.example.y.Foo;

Now, Foo is not recognized by android.

Questions,

Is it possible to import Class from a different module using just import statement?

Do I need to create library of Module y and then import created library into module x?

Or may the solution is something else.

Is `Foo` public? And `i` should be in small case in `import`. — Prerak Sola, Dec 22 '15 at 16:16
Can you please add the code of both the classes in your question? — Prerak Sola, Dec 22 '15 at 16:22
@prudhvi No I didn't add the module to dependency. I will try and then let you know. — Palak, Dec 22 '15 at 16:23

score 99 · Accepted Answer · edited Dec 12 '16 at 15:26

99

Make sure of the following:

In settings.gradle, you should have: include ':x', ':y'.

In x/build.gradle, you should add y as a dependency:

dependencies {
        compile project(':y')
        // other dependencies
}

edited Dec 12 '16 at 15:26

sagix

600
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15

answered Dec 22 '15 at 16:25

pdegand59

12,776
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4

Make sure of creating Module y with Android Library or replace " apply plugin: 'com.android.application' "with " apply plugin: 'com.android.library' " in gradle file. – user3269713 Apr 13 '16 at 03:31
How can I refer my code from another of my modules? I mean I have a `moduleA` where I use `moduleB` and `moduleB` uses a third `moduleC` but when I refer a class from `moduleC` in `moduleA` (control + click) it is showing me the compiled `.class` instead of my `.java` class from my `moduleC`. Do you have some idea to solve this? Thanks! – epool Jul 05 '16 at 19:49
'compile' is deprecated; use 'implementation'. And this goes into app build.gradle, not the module's build.gradle. – steve May 23 '23 at 14:55

Felhi Abdelhafidh · Answer 2 · 2022-08-19T08:25:50.957

13

Now when you create new module,the settings.gradle file add automatically this module.After that u should add this line:

    dependencies {
    implementation(
    ...,
    ..,
            project(":y")
)
}

edited Aug 19 '22 at 08:25

answered May 02 '18 at 11:19

Felhi Abdelhafidh

479
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I can apply this solution for only library module – yane Jun 06 '19 at 22:54

score 10 · Answer 3 · answered Sep 16 '19 at 08:19

10

Combining and correcting two previous answers the best solution is to add this single line to x/build.gradle -> dependencies

implementation project(':y')

compile project() - is deprecated and won't work anymore

If you want to implement just a single module there is no need to use implementation(..., .., project(":y") structure.

answered Sep 16 '19 at 08:19

Daniel

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goes into app build.gradle, not module's build.gradle – steve May 23 '23 at 14:55

How to import class from another module in android studio?

3 Answers3

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